Inhibition of the corrosion of mild steel in H2SO4 by penicillin G
Inhibition of the corrosion of mild steel in H2SO4 by penicillin G
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Date
2008-10
Authors
Eddy, N. O.
Odoemelam, S. A.
Ekwumemgbo, P.
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Abstract
Inhibitive and adsorption properties of penicillin G for the corrosion of mild steel was investigated
using gasometric and thermometric methods. Penicillin G is found to inhibit the corrosion of mild steel
in H2SO4. Inhibition efficiencies of penicillin G increased as the concentration of penicillin G increases
but decreased with increase in temperature. Penicillin G is found to act as an adsorption inhibitor for
the corrosion of mild steel. The adsorption of the inhibitor on the surface of mild steel was found to be
exothermic, spontaneous and followed the mechanism of physical adsorption. Also Langmuir
adsorption isotherm was found to be the best isotherm that described the adsorption characteristics of
the inhibitor.
Description
preprint journal articles
Keywords
Inhibition,, corrosion,, mild steel,, H2SO4,, penicillin G,